Digital signal processing method of fluxgate compass

Yang Xiao-dong; Chen Li-min

Volume 8 Issue 3

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Yang Xiao-dong, Chen Li-min. Digital signal processing method of fluxgate compass[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 33-36.

Citation:

Yang Xiao-dong, Chen Li-min. Digital signal processing method of fluxgate compass[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 33-36.

Yang Xiao-dong, Chen Li-min. Digital signal processing method of fluxgate compass[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 33-36.

Citation:

Yang Xiao-dong, Chen Li-min. Digital signal processing method of fluxgate compass[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 33-36.

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Digital signal processing method of fluxgate compass

Yang Xiao-dong^1
,,
Chen Li-min²

1.
Department of Navigational Instrument, Navy Submarine Academy, Qingdao 266071, Shandong, China
2.
Department of Navigation Support, North Sea Fleet, Qingdao 266071, Shandong, China

More Information

Author Bio:
Yang Xiao-dong(1963-), male, professor, +86-532-83958653, yangxdqtxy@163.cm
Received Date: 2007-12-16
Publish Date: 2008-06-25

Abstract

Abstract

In order to improve the pointing precision and stability of fluxgate compass, a digital signal processing method was put forward. Driving signal was generated by micro processor, magnetic field digital signal from fluxgate sensor was collected by convert analog, even harmonics were obtained by Fourier transform from original signal, and the orientation of fluxgate compass was calculated according to even harmonics. Computation result shows that the amplitude of quadratic harmonic is biggest, its extraction precision is improved by five times at least, the noise of original signal is reduced, its using efficiency is enhanced and the sensitivity of fluxgate sensor is improved because of the computed orientation from multiple even harmonics, so the method is feasible.
- navigation,
- navigational orientation,
- fluxgate compass,
- digital signal processing method

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References(16)

References

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